Types of Dementia
There are many different types of dementia. It is not always clear why some people get dementia while others don’t, it depends on a combination of genes, age, health and lifestyle.
There are several types of Vascular dementia. One type is caused by a stroke (called stroke-related dementia) another is caused by the poor blood supply to parts of the brain (called subcortical vascular dementia)
The word ‘Vascular” relates to blood vessels and is the result of problems with blood supply to the brain. Nerve cells need oxygen and nutrients from the blood to survive. Vascular dementia sometimes follows a large stroke (called post-stroke dementia) more often though it comes after a number of small strokes (called multi-infarct dementia)
Common early changes include difficulty planning, thinking quickly or concentrating. There may also be a sense of heightening anxiety, which can also be feelings of depression. Memory loss isn’t always common in the early stages.
Dementia with Lewy bodies
Lewy bodies are also found in people with Parkinson’s disease, which is called “ Parkinson’s disease dementia. Similar to the plaques and tangles of Alzheimer’s disease, they disrupt the way the brain functions, they reduce the levels of chemical messenger’s and cause nerve cells to die. This form of dementia gets its name from tiny clumps of protein that develop inside nerve cells, called LB.
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